Twitter employees revel in company’s new headquarters

The rooftop garden at the new Twitter headquarters in Mid-Market, a month before the building opened its doors Monday. (Sarah Rice/The Chronicle)

Mid-Market’s newest anchor company opened its doors Monday morning with a rooftop barbecue, gorgeous weather and hundreds of thrilled Twitter employees retweeting each others’ photos of the company headquarters.

Twitter moved 800 employees to the Art Deco building on Market between Eighth and Ninth streets over the weekend, a move that city officials hope will jumpstart corporate and commercial revitalization of the area.

But never mind San Francisco’s years-long urban planning efforts. There were chocolate-covered strawberries and a rooftop garden to tweet about.

Twitter employees may find themselves suddenly in high demand as lunch hosts — but any attempts to get onto that rooftop may have to be delayed for a bit. We asked around and heard the company isn’t allowing guests for the first two weeks at the new office.